Centrifugal liquid-separator.



Patented 0ct. 23, |900.

D. H. BURRELL. GENTRIFUGAL LIU-UID SEPABATUR.

(Ap'pumion fued Nov. e, 1899.)

(No Model.)

Invenon' .f'orneeyfs fly! UNITED STATES PATENT EEICE.

DAVID-H. EURRELL, or LITTLE FALLS, NEW YORK.

CENTRIFUGAL LI'QUID-SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 660,360, dated October23, 190.

Application filed November 6, 1899. Serial No. 736,033. @lo model.) i

To all whom it may concern.-

Be it known that I, DAVID H. BURRELL, a citizen of the United States,residing at Little Falls, in the county of Herkimer and State of NewYork, have invented new and useful Improvements in CentrifugalLiquid-Separators, of which the following is a specification.

This invention relates to the laminate division contrivances which areplaced in the liquid-space of centrifugal liquid-separators,particularly centrifugal creamers,for increasing the separating orskimming capacity of the machine and which consist of numerous blades orleaves which are arranged obliquely to the radial line of the bowl andby which the body of liquid is divided into numerous thin layers, whichare intersected by the radial line of the bowl.

The object of my invention is to construct the skimming contrivance insuch a manner that the blades are held in their proper working positionby simple, substantial, and inexpensive means and can be separated fromeach other for cleaning when the device has been removed from the bowl.

In the accompanying drawings, Figure lis a sectional elevation of aseparator-bowl provided with my improved skimming contrivance. Fig. 2 isa horizontal section in line 2 2, Fig. l. Fig. 3 is a fragmentaryhorizontal section on the same line, but on an enlarged scale, andshowing in section the spacing projections formed integrally with theblades. Fig. 4 is a fragmentary sectional View similar to Fig. 3, butshowing the blades provided with spacing-rivets and with radial lipsinstead of oblique lips at their inner ends. Fig. 5 is a perspectiveView showing the slotted core which receives the inner ends kthecream-discharge b', and with the usual zontal rings c, which are securedat different.

heightsto the outer edges of vertical radial plates f. The latter bearwith their vertical inner edges against the feed-pipe O, so that thiscore can be inserted by slipping it around Vthe feed-pipe or can beremoved therefrom when the cover of the bowl has been removed. One ofthe rings is arranged near the upper ends of the blades andthe othernear their lower ends, while an intermediate ring is also employed, asshown, when the height of the bowl requires the same. Each ring isprovided in its outer face with upright slots h, which open'outwardlyand are of the proper width to receive the inner ends of the blades.Corresponding slots in the different rings are in line with each other,and the inner end of each blade is formed into a lip t, which isinserted in corresponding slots of the core. The lip 'L' -stands at anangle to the body of the blade and can be readily bent on the same.These blades, in order to be durable in use, are preferably made ofsomewhat-stili sheet-steel, and this cannot be curved or curled so shortas would be necessary to form a hinge-joint, but admits of the lips t'being bent on the-blades Without difficulty.

The slots in the face of the core and the lips of the blades arepreferably arranged obliquely to the radial line of Athe bowl, as shown,in order to resist the tendency of centrifugal force to drive the lipsout of the slots. The slots and lips may, however, be arranged radially,as shown in Fig. 4, although this arrangement is less desirable.

The blades are provided with spacing projections K, which may be formedby indentcient roomis formed between the remaining ing the'blades, asshown in Figs. 2 and 3,01'

prevented when assembled from drawing out;

of the slots of the core in a radial or outward direction, while theblades are free to be moved in theslots in. an edgewise direc?` tion.

The outer edges of the blades may rest directly against the peripheralwall of the bowl,` as represented in Figs. l` and 2, or they may restagainst an iuclosing` jacket or cage' Il.,4

which is removably applied to the outer edges of the blades, asrepresented in Figs. 6andf7.' This jacket or cage may be constructed inany suitable manner, so as not to obstruct' the dow of theliquid.Forinstancm as shown, it may be composed of upright bars [and horizontalcurved rods or rings Z.

V'hen the skimming device has been removed from the bowl, the blades canbe separated from the core by an edgewise4 or longitudinal movement ofthe lip of each blade in the slots of the core, or, if desired', everyal.- ternate blade can be so removed when sulfiblades to remove the samefrom the coreby an outward or radial movement; This device is verysimple, strong, and durable and permits the blades and their supportingparts to be readily detached from each other for cleaning and to beconveniently assembled for use..

I. claim as my inventionl. In a skimming device for centrifugalliquid-separators, the combination with a core provided iu its outerface with slots which ,are` arranged obliquely tothe radial line, of manannular series of tangential or eccentric skimming-blades provided attheir inner ends iwith. liipswhicli are removably seated in the slots ofthe core, substantially as set forth.

2. In a skimming device for centrifugal liquid-separators, thecombination with externally-sletted rings arranged one above the other,and connecting means whereby said l rings are rigidly connected and heldapart in alinement one above the other, of an annular seriesof skim mingl-blades which are arranged 1 around said wings. and have their innerends lremovably inserted in the slots ol' the same,

substantially as set forth5 3; In aiskimmingdevice for centrifugalliquid-separators, the combination with a core, composed o f'superposed", externally#y slotted l rings and upright connecting-platesarranged within said: rings and secured thereto, of an annular seriesof' skim min g-blad'es which are arrangedaronud said rings and havetheir innerendsremovably insertedin the slots ofthe same,` substantiallyas set forth.

Witness my handu this 3d day of November, 1899;

GRIFFITH PRICE-Ahn, G. R. HITCHCOCK.

Y v f /a

